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Earthquake early warning systems, already successfully deployed in Mexico, Japan and Taiwan, can detect an earthquake in progress and provide notice of seconds to tens of seconds prior to actual ground shaking. Building on developments in other countries with significant earthquake risk, scientists are exploring early warning in the United States. source
Earthquake early warning systems have been expanding rapidly around the world. There are currently warning systems in Japan, Taiwan, Mexico, Turkey and Romania. source=Berkley
Not all warning systems require much money. One 14-year-old in Chile rigged a $75 quake alarm to his computer and sends out warnings on his Twitter account. More than 70,000 people follow him, and so far, he's been accurate. source=MSM
source *The price for the above earthquake alarm, does not include VAT.
** For orders outside Romania, depending on quantity, the price will be established independently for each customer. Promotion supported by Lamit Company. Take advantage now.
This action was taken in the wake of confirmed reports of dead red abalone and other invertebrates on beaches and inside coves along the coast in these areas.
Data continue to be collected that shows an abalone die-off along the Sonoma coast beginning Aug. 27. According to Department of Fish and Game (DFG) biologists, these abalone deaths coincided with a local red tide bloom and calm ocean conditions. Although the exact reasons for the abalone deaths are not known, invertebrate die-offs have occurred in the past along the northern California coast due to lack of oxygen and/or poisoning when similar weather and bloom conditions existed but not at the magnitude of this event.
Reports of dead abalone and a variety of invertebrates have come from Bodega Bay, Russian Gulch, Fort Ross, Timber Cove and Salt Point State Park in Sonoma County and as far north as Anchor Bay in Mendocino County. Other DFG biologists and game wardens have collected abalone, mussels and water samples since the beginning and are continuing to document reports from the public. The public is encouraged to report the location, number and date of dead or dying abalone to Ian Taniguchi at (562) 342-7182 or by e-mail at firstname.lastname@example.org.
Originally posted by megabogie
reply to post by Glinda
Your post got me thinking...Middlebrook 35...could be a city and latitude and low and behold here's :
The latitude and longitude of
Middlebrook Heights, Tennessee is:35° 57' 22" N / 83° 59' 30" W
It appears to be a suburb of Knoxville. Just grasping at straws now
ETA Maybe the "T" in his screen name is referring to Tennessee??edit on 26-8-2011 by megabogie because: (no reason given)
In continuum mechanics, stress is a measure of the internal forces acting within a deformable body. Quantitatively, it is a measure of the average force per unit area of a surface within the body on which internal forces act. These internal forces are a reaction to external forces applied on the body. Because the loaded deformable body is assumed to behave as a continuum, these internal forces are distributed continuously within the volume of the material body, and result in deformation of the body's shape. Beyond certain limits of material strength, this can lead to a permanent shape change or structural failure.
The earth has two crusts. One…the mostly basalt lower crust or the oceanic crust which is 2 – 4 miles deeper down than the higher upper continental crust. This lower crust, essentially covers the Earth. It … this crust is being made daily at rift cracks that snake around the earth’s mid- oceans. But how could all these rifts continually spread apart…without the Earth growing? Ah….that is the question….isn’t it?
When the applied loads permanently deform the structure, the theory of plasticity applies.
In physics and materials science, plasticity describes the deformation of a material undergoing non-reversible changes of shape in response to applied forces.
The earliest reference we have to unusual animal behavior prior to a significant earthquake is from Greece in 373 BC. Rats, weasels, snakes, and centipedes reportedly left their homes and headed for safety several days befor a destructive earthquake. Anectdotal evidence abounds of animals, fish, birds, reptiles, and insects exhibiting strange behavior anywhere from weeks to seconds before an earthquake. However, consistent and reliable behavior prior to seismic events, and a mechanism explaining how it could work, still eludes us. Most, but not all, scientists pursuing this mystery are in China or Japan.
We can easily explain the cause of unusual animal behavior seconds before humans feel an earthquake. Very few humans notice the smaller P wave that travels the fastest from the earthquake source and arrives before the larger S wave. But many animals with more keen senses are able to feel the P wave seconds before the S wave arrives. As for sensing an impending earthquake days or weeks before it occurs, that's a different story.
The paper poses this question: Is it reasonable for a seismic-escape behavior pattern to evolve, and can such a genetic system be maintained in the face of selection pressures operating on the time scales of damaging seismic events? All animals instinctively respond to escape from predators and to preserve their lives. A wide variety of vertebrates already express “early warning” behaviors that we understand for other types of events, so it’s possible that a seismic-escape response could have evolved from this already-existing genetic predisposal. An instinctive response following a P-wave seconds before a larger S wave is not a “huge leap”, so to speak, but what about other precursors that may occur days or weeks before an earthquake that we don’t yet know about? If in fact there are precursors to a significant earthquake that we have yet to learn about (such as ground tilting, groundwater changes, electrical or magnetic field variations), indeed it’s possible that some animals could sense these signals and connect the perception with an impending earthquake.